R T M 3 2 0 4 G P S T i m i n g M o d u l e U s e r M a n u a l
14
C H A P T E R T W O
15
R T M 3 2 0 4 G P S T i m i n g M o d u l e U s e r M a n u a l
B A S I C I N S T A L L A T I O N
both client and server operation using
telnet
. For security reasons as well as to reduce the memory
footprint in the RTM3204/Tycho, only client operation is supported using
ftp
.
Security conscious users will want to use
ssh
, the secure shell replacement for
telnet
, as the login
means. The companion utility,
scp
provides a secure replacement for ftp as a means of transferring
files to and from the RTM3204/Tycho. Both of these protocols are supported in the RTM3204 via the
OpenSSH implementations for Linux. Refer to
Appendix D - Security
for more information about
the secure shell protocol.
Using Telnet
When establishing a
telnet
connection with your RTM3204, logging in directly as
root
is not per-
mitted. This is a security measure that makes it slightly more difficult to gain access by simply trying
passwords, since it is also necessary to know the name of a user. When you initiate a
telnet
session
with the RTM3204, this banner will be displayed:
********************************************************************************
* Welcome to Tycho GPS telnet console on: gsys.your.domain
********************************************************************************
gsys login:
Here you may log in as “gsysuser” with password “Praecis”. When logged in as “gsysuser”, you may
check status information and view log files but you will not be able to modify any system settings or
view secure files. After correctly entering the password at this prompt,
Password:
the sign on message is shown. It identifies the host system as Tycho GPS and shows the software part
number, version and build date:
Tycho GPS 6010-0004-000 v 1.00 Wed May 16 14:17:44 UTC 2002
Tycho GPS (root@gsys:~)->
This last line is the standard RTM3204/Tycho shell prompt. The RTM3204/Tycho uses the
bash
shell, which is the Linux standard, full-featured shell. After configuring the unit, you should change
the passwords using the
gsyspasswd
command issued from the shell prompt.
To gain
root
access, you must now issue the “super user” command at the shell prompt:
Tycho GPS (root@gsys:~)-> su root
You will then be prompted for the password, which is “endrun_1”, and be granted
root
access to the
system. To leave “super user” mode, issue the shell command
exit
. Issuing
exit
again will close
the
telnet
session.
Using SSH
When establishing a
ssh
connection with your RTM3204, logging in directly as
root
is permitted.
When you log in as
root
via a
ssh
session with the RTM3204, this banner will be displayed:
********************************************************************************
* Welcome to Tycho GPS SSH console on: gsys.your.domain
********************************************************************************
[email protected]’s password:
Summary of Contents for RTM3204
Page 1: ...Smarter Timing Solutions RTM3204 GPS Timing Module User Manual...
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Page 6: ...R T M 3 2 0 4 G P S T i m i n g M o d u l e U s e r M a n u a l...
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Page 40: ...R T M 3 2 0 4 G P S T i m i n g M o d u l e U s e r M a n u a l 30 A P P E N D I X A...
Page 46: ...R T M 3 2 0 4 G P S T i m i n g M o d u l e U s e r M a n u a l 36 A P P E N D I X B...
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Page 56: ...R T M 3 2 0 4 G P S T i m i n g M o d u l e U s e r M a n u a l 46 A P P E N D I X D...
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